Simon de DAMMARTIN
He married Marie Countess of Ponthieu Abt 1212 at Aumale, Seine-Maritime, France . Marie Countess of Ponthieu was born at of Aumale, Seine-Maritime, France Abt 1186 daughter of William (Guillaume) III Count of Ponthieu and Alix Princess of France .
They were the parents of 3
children:
Joana de Dammartin, Countes Ponthieu
born Aft 1208.
Philippe de Dammartin
born Abt 1214.
Jeanne de Dammartin
born 1216.
Simon de Dammartin died 1239 at Castile, Spain .
Marie Countess of Ponthieu died 1251 at Spain .